Mining-machine.



No. 760,575. PATENTED MAY 24 F. L. SESSIONS & e. B. NORRIS.

MINING MACHINE.

APPLIUATION FILED JAN. 6 1903 I0 IODEL.

ENTORS WITNESSES.-

THE Momus co. rum-ammo" wAsmnm'om 0. c.

' Beitknownthat we,FRANK fstsgmgatd the lubricator and the parts to whichit is, at- 2 7 In the drawings we have selected forillns thereof. do not enter, into the, essential feato-thecutter-chain, and alsoaset of shafts and p I gearing, which transmit some ,of .the gpowerto understood upon reference to the aforesaid UNITED STATES.

Patented May'24, 1904.

PAT NTQF I FRANK LL sEssioNsfAND GEORGE NORRIS, o coLUMBUs, oino',

- ASSIGNORS TO JOSEPHA. JEFFREY,-.OF co UMBUs,,oH1o.

1 *sPiacIFmATIo forming part bf newe sl :Apphcationfiled January T0. all'whom it m/a y concern GEORGE B. NORRIS, citizens of the. United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented cer tain new and useful Improvements in Mining.- Machinea'of which the following is a spe cification,; reference being bad therein to the accompanying drawingsQ 1- Figure 1 is a plan view of :a mechanism emloodying our improvements. 2 shows tached. .Fig. 3 is anendviewof the l ubrica- 3 tor., :Fig. 4 is a side view, partly in section, of the luloricator. Fig; 5 is a-plan View, of the :lubricator with the, cover detached. 11g. 6 showsseveral .of the details.

tration a mining-machine of a form-now well known, and inasmuch as many of the parts tures of'the present invention theyneed not be here fully describedin detail. As; concerns,thepartieularform of machine shown, reference may be made to the patent, No. r 684,356, to H. B. Dierdorif, dated October 8, i 1901. For present purposes it is suflicientto note thatAindicates the bed-frame as a whole, and B the, carriage, which moves forward and back on the bed, As illustrated, thev bed has side bars a, with the rack-bars a attheu'pper edges-and with the crossgirths or bottom b 1 The carriage-frame comprises the two parts 5 and 3b, the formerserving as asupPQ for the motor, the shafting, and the gearing, while the latter constitutes the frame upon whichthe cntting+ chain is'supported, and around whichit-travels. The motorrsupport ing part has connectedwith the.;motor a set of e r eme awh hran r i the pow the carriage feeding mechanism, the -latter. being indicated as; a whole by D. As loefore said, the details of these parts will be readily Patent No. '760,57j5, dated May 24,.1904.-.;: SerjalNalielip ih trt'm aem patent. The forward part of the carriage comprises a centralframe bar or bars at ,E,

chain-guiding bars at F, anda cross; 5o head at F. G. indicates'the cutter-carrying chain. It'is composed of cntter' -linkfsgi zmd connecting-links g.- The chainiafittedto and travels around the frame, the side bars F an th w rh d F g. s d'e for the chain links, which retains them in proper lines" oftravel ando ut frorn iwhich the.

cuttersproject, the points o'fthe. naeritra eling on the dottedlinejindi'cateid hy'g The movement of' thelchain and of; the cntter 6o aroundthe gnideway on the frame is effected by means of the sprocket wheeliat Gr the motor. The chainencounters greatresistance asfit travelsar'onndftlie guide,- not only because of its engagementlwith the coal throngh; the cntter points, hntjalso because of its being confined; in, resting n'pon," an'd hearing -against the walls of'theguidewav'i Consta nt hiloricatiqmv necessary inord'erto have the power'suppliedto the chain withsuflicient economy. Heretofore this hiloricationjof the chain has generally been'accomplished by the operator fromtimeto pouring or dropping oil orluhricatinginaterial upon the chainlinks atsome point where-they are exposed. 1 In 7 5 the present instance the lnhricatingis effected by the device shown. This' compr'isesjtwo.

principal elements, one indicated as' awhole by and the other. by I. At H there a lubricator receptacle-or vesseljwhich is secured at 3 asnitable pointto thetraveling frame, preferably, as, here shown, to the motor'or to the motor-support; This vessel-has a chamber J, capable. of receiving and retaining :a sufliciently large body'of oil or lubricant, The 5 oil that escapesfroinfth'is chamber-is conduct dby a ui e .JZ-t e l v rin en o w c isdirectly overitheflchainat points near the driving sprocket-wheel. Theoil isfprevented from flowing from the chamber'J hyacom' 9 trolling rnechanism atK. This comprises a valve is, whieh normallfyfcloses'theentranceorificexto the g ide J. Thevalvepart is formed at the end of a stem k',wliich extends upward and is held in a guide at L. The valve and valve-stem are normally held up in position for closing the port by means of a spring 762. When the valve is moved downward, the oil can pass around it into the spout 0r delivering-duct J, the dimensions of the latter in cross-section being somewhat larger than that of the valve, as shown at it. 'The valve is intermittingly moved downward to open the port at intervals, as follows: M is a vibrating finger or arm arranged to strike or press upon the upper end of the stem k. As shown, it is secured to a rock-shaft or pin M, mounted in the wall of the lubricator vessel. At its outer end it carries an arm N. I indicates a stationary tripper secured to the bedframe and lying in the path of the arm end as it moves forward with the carriage. There may be as many of these tripping devices I as are deemed necessary located at suitable intervals along the side part of the bed. When the machine is in operation and the carriage is under the action of the feeding mechanism moving forward, the rocking arm N contacts with one after the other of the trippers I, and while in such contact the finger M is pressed and held down against the stem is and the latter is pushed down far enough to let some of the oil pass from the receptacle into the guide J From the latter it slowly drops upon the rapidly-moving chain-links just before they enter the guide F. As they move through the guideway the oil is distributed, and the guide-walls and the chain-pintles are kept properly lubricated. The valve is held open only for a brief period while the arm N is engaged with the tripper I. After escaping therefrom the valve is closed by the spring 10 the arm N by its gravity returning the rock-shaft and the presser-arm M to their normal positions. We have shown a series of the tripper elements I; but it will be understood that they may be varied in number. Under some circumstances a single one will be sufficient. When the carriage is returningthat is, moving in the outward direction at the time the cutters are being withdrawn from the coalthe arm N may engage with the tripper I; but this will have no effect upon the valve, as the arm M will be moved away from the stem suffieient room being provided for it in the upper part of the box or reservoir, and the cover of the latter may be formed with a socket enlargement, as shown at O, to assure sufficient freedom of movement of the end of the part M.

What we claim is- 1. In a mining-machine, the combination with the carriage, the bed, and the cutter-carrying chain mounted upon the carriage, of the lubricant-receptacle, the valve, controlling the flow of oil therefrom, means for guiding the oil to the chain, and automatically-actuated tripping devicesfor intermittingly opening the valve as the carriage moves along the bed to permit a limited flow of oil, substantially as set forth.

2. In a mining-machine, the combination of the bed, the carriage moving forward and back on the bed, the cutter-chain on the carriage, the lubri'cant-receptacle on the carriage arranged to deliver oil to the chain, the valve controlling the flow of oil from the receptacle, means for holding the valve normally closed, the automatically and intermittingly acting tripper, and means interposed between the tripper and the valve, and adapted to engage with the valve when the carriage is moving in one direction and to remain disengaged therefrom when it is moving in the opposite direction, substantially as set forth.

3. In a mining-machine, the combination,

of the bed, the carriage moving forward and back on the bed, the cutter-chain on the carriage, the lubricant-receptacle on the carriage arranged to deliver oil to the chain, the valve controlling the flow of oil from the receptacle, means for holding the valve normally closed, the automatically intermittingly acting'tripper, and the rocking arm M interposed between the tripper and the valve and arranged to be pressed in one direction by the tripper to open the valve when the carriage is moving in one direction, and to be pressed in the opposite direction by the tripper when the carriage is moving in the opposite direction, substantially as set forth.

4. In a mining-machine, the combination of the bed, the carriage moving forward and back thereon, the cutter-chain on the carriage, the lubricant-receptacle on the carriagearranged to deliver oil to the chain, and means for intermittently delivering oil from said lubricant-receptacle to the said chain, substantially as set forth.

5. In a mining-machine the combination of the bed, the carriage moving forward and back thereon, the cutter-chain on the carriage, the lubricant-receptacle on the carriage arranged to deliver oil to the chain, and means for intermittently delivering oil from said. lubricant-receptacle to the chain as the earriage moves forward on the bed, substantially as set forth.

6. In a mining-machine, the combination of the bed, the carriage moving forward and back thereon, the cutter-chain on the carriage, the lubricant-receptacle on the carriage arranged to deliver oil to the chain and means arranged to deliver oil intermittently from said lubricant-receptacle when the carriage is moving in one direction and to remain inactive when the carriage is moving in the other direction, substantially as set forth.

7 In a mining-machine, the combination with the bed, the carriage moving forward and back thereon, and the cutter-chain on the carriage, of a lubricant-receptacle on the carriage arranged to deliver oilto the chain, the In'testirnony whereof We aflix our signatures valve rlzontrollingfthe 111101 of oil1 from1 said rein presence of two Witnesses. ceptac e, means or 0 ing t e va ve normally closed, the tripping devices secured at 3 intervals along the bed and means interposed I between said tripping devices and the valve Witnesses: adapted to engage Withsaid tripping devices F. C. KOGHENDERFER, e to operate the valve, substantially as set forth, C. A. DODDS. I 

